{"description":"Trending threats, MITRE ATT\u0026CK coverage, and detection metadata. Fed continuously.","favicon":"https://feed.craftedsignal.io/favicon-32x32.png","feed_url":"https://feed.craftedsignal.io/tags/cve-2026-78211/feed.json","home_page_url":"https://feed.craftedsignal.io/","icon":"https://feed.craftedsignal.io/apple-touch-icon.png","items":[{"_cs_actors":[],"_cs_cpes":[],"_cs_cves":[{"cvss":9.8,"id":"CVE-2026-78211"}],"_cs_exploited":false,"_cs_has_poc":false,"_cs_poc_references":[],"_cs_products":["GCB Doctor"],"_cs_severities":["critical"],"_cs_tags":["cve-2026-78211","command-injection","vulnerability"],"_cs_type":"advisory","_cs_vendors":["4MOSAn Security Technology"],"content_html":"\u003cp\u003e4MOSAn GCB Doctor, developed by 4MOSAn Security Technology, contains an OS Command Injection vulnerability (CVE-2026-78211) due to an improperly removed ADOdb test page included in versions prior to 20260621. This vulnerability allows unauthenticated remote attackers to send crafted HTTP requests to the vulnerable test page, enabling the injection and execution of arbitrary OS-level commands on the affected server. Given the nature of the software, successful exploitation grants the attacker full control over the host environment. Defenders should prioritize patching or removing the insecure test files immediately.\u003c/p\u003e\n\u003ch2 id=\"attack-chain\"\u003eAttack Chain\u003c/h2\u003e\n\u003col\u003e\n\u003cli\u003eAttacker performs reconnaissance to identify instances of 4MOSAn GCB Doctor.\u003c/li\u003e\n\u003cli\u003eAttacker probes the web server for the presence of the known vulnerable ADOdb test page.\u003c/li\u003e\n\u003cli\u003eAttacker sends a crafted HTTP request to the discovered ADOdb test page path.\u003c/li\u003e\n\u003cli\u003eThe input parameter within the request is passed unsanitized to a system shell.\u003c/li\u003e\n\u003cli\u003eThe server process executes the attacker-supplied command with the privileges of the web service account.\u003c/li\u003e\n\u003cli\u003eAttacker confirms successful command injection through server responses or out-of-band callbacks.\u003c/li\u003e\n\u003cli\u003eAttacker performs post-exploitation activities, such as establishing persistence or exfiltrating data.\u003c/li\u003e\n\u003c/ol\u003e\n\u003ch2 id=\"impact\"\u003eImpact\u003c/h2\u003e\n\u003cp\u003eSuccessful exploitation of this vulnerability leads to unauthenticated remote code execution on the underlying server. This can result in complete system compromise, unauthorized access to sensitive configuration files, and potential pivot points into the internal network. No specific victim counts have been reported, but organizations utilizing 4MOSAn GCB Doctor versions prior to 20260621 are considered at high risk.\u003c/p\u003e\n\u003ch2 id=\"recommendation\"\u003eRecommendation\u003c/h2\u003e\n\u003cul\u003e\n\u003cli\u003eApply the security update to 4MOSAn GCB Doctor version 20260621 or later.\u003c/li\u003e\n\u003cli\u003eIf patching is not immediately feasible, identify and delete the ADOdb test page files from the web root to prevent exploitation.\u003c/li\u003e\n\u003cli\u003eEnable web server access logging and audit requests targeting suspicious file paths associated with ADOdb test tools.\u003c/li\u003e\n\u003cli\u003eDeploy the provided Sigma rule to detect attempts to reach the known vulnerable endpoint.\u003c/li\u003e\n\u003c/ul\u003e\n","date_modified":"2026-08-24T05:41:05Z","date_published":"2026-08-24T05:41:05Z","id":"https://feed.craftedsignal.io/briefs/2026-08-cve-2026-78211/","summary":"An unauthenticated OS command injection vulnerability in 4MOSAn GCB Doctor allows remote attackers to execute arbitrary system commands via an unremoved ADOdb test page.","title":"OS Command Injection in 4MOSAn GCB Doctor","url":"https://feed.craftedsignal.io/briefs/2026-08-cve-2026-78211/"}],"language":"en","title":"CraftedSignal Threat Feed - Cve-2026-78211","version":"https://jsonfeed.org/version/1.1"}